Greatest Common Factor of 20, 97, 70, 630

Greatest common factor or Greatest common divisor (GCD) can be calculated in two ways

• Greatest Common Factor of 20, 97, 70, 630 by common division method
• Greatest Common Factor of 20, 97, 70, 630 with matching the biggest common factor

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∴ GCF of numbers is 1 because of no common factors present between them.

Factors of 20

List of positive integer factors of 20 that divides 20 without a remainder.

1,2,4,5,10,20

Factors of 97

List of positive integer factors of 97 that divides 97 without a remainder.

1,97

Factors of 70

List of positive integer factors of 70 that divides 70 without a remainder.

1,2,5,7,10,14,35,70

Factors of 630

List of positive integer factors of 630 that divides 630 without a remainder.

1,2,3,5,6,7,9,10,14,15,18,21,30,35,42,45,63,70,90,105,126,210,315,630

Greatest Common Factor

We found the factors 20,97,70,630 . The biggest common factor number is the GCF number.
So the greatest common factor 20,97,70,630 is 1.

Here are some samples of GCF of two or more Numbers calculations.

• GCF of 16, 52, 76, 247
• GCF of 88, 41, 77, 127
• GCF of 19, 26, 87, 661
• GCF of 16, 81, 18, 607
• GCF of 83, 45, 31, 688

1. What is the GCF of 20, 97, 70, 630?

Answer: GCF of 20, 97, 70, 630 is 1.

2. How to Find the GCF of 20, 97, 70, 630

Answer: Greatest Common Factor(GCF) of 20, 97, 70, 630 = 1

Step 1: Divide all the numbers with common prime numbers having remainder zero.

Step 2: Then multiply all the prime factors GCF(20, 97, 70, 630) = 1.